diff --git a/CHANGELOG.md b/CHANGELOG.md
index 88bf5eb93..5ea5c3af4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Changelog
 
+## v0.103
+
+- Fixed a regression in alert history queries.
+
 ## v0.102
 
 ### Fixed
diff --git a/cmd/karma/alert_history.go b/cmd/karma/alert_history.go
index a27e1a5f4..e8d8ee3bb 100644
--- a/cmd/karma/alert_history.go
+++ b/cmd/karma/alert_history.go
@@ -319,7 +319,7 @@ func countAlerts(uri string, timeout time.Duration, transport http.RoundTripper,
 			lv[model.LabelName(k)] = model.LabelValue(v)
 		}
 	}
-	q := fmt.Sprintf("changes(ALERTS_FOR_STATE{%s}[1h])", lv)
+	q := fmt.Sprintf("changes(ALERTS_FOR_STATE%s[1h])", lv)
 	log.Debug().
 		Str("uri", uri).
 		Interface("labels", labels).